.leftBox {
    width: 100%;
    height: 100%;
    background: url('http://00.minipic.eastday.com/20171010/20171010103617_671dd64c0ce9ffaba78b1dfe38378a8c_4.jpeg');
    .userImg{
        width: 100px;
        height: 100px;
        border-radius: 50px;
    }
    .fnt{
        color: #fff;
    }
}